package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {
    @Autowired
    private DishService dishService;

    @Autowired
    private SetmealService setmealService;

    //根据id删除品类

    public void removeid(long id) {

        //添加查询条件，根据分类id进行查询菜品数据
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Dish::getCategoryId, id);
        int count = dishService.count(queryWrapper);

        //判断是否已经关联
        if (count > 0) {
            throw new CustomException("当前分类关联了菜品,不能删除");
        }
        //添加查询条件,根据分类id进行查询套餐数据
        LambdaQueryWrapper<Setmeal> queryWrapper1 = new LambdaQueryWrapper<>();
        queryWrapper1.eq(Setmeal::getCategoryId, id);
        int count1 = setmealService.count(queryWrapper1);

        if (count1 > 0) {
            throw new CustomException("当前分类关联了套餐,不能删除");
        }
        removeById(id);
    }
}
